Leighton
worldleaksThis record tracks a ransomware attack claimed by the worldleaks group against Leighton. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.
Window Zero
EXPOSURE GAPWindow Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.
Attack Summary
[AI generated] Leighton is a multinational construction company, based in Australia, known for undertaking major construction, infrastructure, telecommunications and engineering works around the world. It was previously known as Leighton Contractors, prior to its rebranding as CIMIC Group in 2015. Some of its notable projects include large-scale building, infrastructure, and civil & mining projects globally.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.